3v4l.org

run code in 300+ PHP versions simultaneously
<?php trait A{ function x(){} } trait B{ function x(){} } trait C{ function x(){} } class WAT{ use A, B, C{ B::x insteadof A; C::x insteadof B; } }
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.6 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
preferences:
103.72 ms | 404 KiB | 172 Q